Fix to use bool directory for the keyed parameter

src/aggregation/agg_req.rs

@@ -271,7 +271,7 @@ mod tests {
                         (7f64..20f64).into(),
                         (20f64..f64::MAX).into(),
                     ],
-                    keyed: Some(true),
+                    keyed: true,
                 }),
                 sub_aggregation: Default::default(),
             }),

src/aggregation/bucket/histogram/histogram.rs

@@ -48,8 +48,6 @@ use crate::{DocId, TantivyError};
 ///
 /// # Limitations/Compatibility
 ///
-/// The keyed parameter (elasticsearch) is not yet supported.
-///
 /// # JSON Format
 /// ```json
 /// {
@@ -118,8 +116,7 @@ pub struct HistogramAggregation {
     /// bounds would not be returned.
     pub extended_bounds: Option<HistogramBounds>,
     /// Whether to return the buckets as a hash map
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub keyed: Option<bool>,
+    pub keyed: bool,
 }
 
 impl HistogramAggregation {
@@ -1409,7 +1406,7 @@ mod tests {
                 bucket_agg: BucketAggregationType::Histogram(HistogramAggregation {
                     field: "score_f64".to_string(),
                     interval: 50.0,
-                    keyed: Some(true),
+                    keyed: true,
                     ..Default::default()
                 }),
                 sub_aggregation: Default::default(),

src/aggregation/bucket/range.rs

@@ -57,8 +57,7 @@ pub struct RangeAggregation {
     /// range. Extra buckets will be created until the first to, and last from, if necessary.
     pub ranges: Vec<RangeAggregationRange>,
     /// Whether to return the buckets as a hash map
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub keyed: Option<bool>,
+    pub keyed: bool,
 }
 
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
@@ -467,7 +466,7 @@ mod tests {
                 bucket_agg: BucketAggregationType::Range(RangeAggregation {
                     field: "fraction_f64".to_string(),
                     ranges: vec![(0f64..0.1f64).into(), (0.1f64..0.2f64).into()],
-                    keyed: Some(true),
+                    keyed: true,
                 }),
                 sub_aggregation: Default::default(),
             }),

src/aggregation/intermediate_agg_result.rs

@@ -285,8 +285,7 @@ impl IntermediateBucketResult {
                 let is_keyed = req
                     .as_range()
                     .expect("unexpected aggregation, expected range aggregation")
-                    .keyed
-                    .is_some();
+                    .keyed;
                 let buckets = if is_keyed {
                     let mut bucket_map = HashMap::new();
                     for bucket in buckets {
@@ -306,7 +305,7 @@ impl IntermediateBucketResult {
                     &req.sub_aggregation,
                 )?;
 
-                let buckets = if req.as_histogram().unwrap().keyed.is_some() {
+                let buckets = if req.as_histogram().unwrap().keyed {
                     let mut bucket_map = HashMap::new();
                     for bucket in buckets {
                         bucket_map.insert(bucket.key.to_string(), bucket);

src/aggregation/mod.rs

@@ -503,13 +503,15 @@ mod tests {
         "bucketsL1": {
             "range": {
                 "field": "score",
-                "ranges": [ { "to": 3.0f64 }, { "from": 3.0f64, "to": 70.0f64 }, { "from": 70.0f64 } ]
+                "ranges": [ { "to": 3.0f64 }, { "from": 3.0f64, "to": 70.0f64 }, { "from": 70.0f64 } ],
+                "keyed": false
             },
             "aggs": {
                 "bucketsL2": {
                     "range": {
                         "field": "score",
-                        "ranges": [ { "to": 30.0f64 }, { "from": 30.0f64, "to": 70.0f64 }, { "from": 70.0f64 } ]
+                        "ranges": [ { "to": 30.0f64 }, { "from": 30.0f64, "to": 70.0f64 }, { "from": 70.0f64 } ],
+                        "keyed": false
                     }
                 }
             }
@@ -519,12 +521,14 @@ mod tests {
                 "field": "score",
                 "interval":  70.0,
                 "offset": 3.0,
+                "keyed": false
             },
             "aggs": {
                 "bucketsL2": {
                     "histogram": {
                         "field": "score",
-                        "interval":  70.0
+                        "interval":  70.0,
+                        "keyed": false
                     }
                 }
             }
@@ -537,7 +541,8 @@ mod tests {
                 "bucketsL2": {
                     "histogram": {
                         "field": "score",
-                        "interval":  70.0
+                        "interval":  70.0,
+                        "keyed": false
                     }
                 }
             }
@@ -885,7 +890,8 @@ mod tests {
         { "from": 7.0, "to": 19.0 },
         { "from": 19.0, "to": 20.0 },
         { "from": 20.0 }
-      ]
+      ],
+      "keyed": false
     },
     "aggs": {
       "average_in_range": { "avg": { "field": "score" } },
@@ -901,7 +907,8 @@ mod tests {
         { "from": 7.0, "to": 19.0 },
         { "from": 19.0, "to": 20.0 },
         { "from": 20.0 }
-      ]
+      ],
+      "keyed": false
     },
     "aggs": {
       "average_in_range": { "avg": { "field": "score" } },
@@ -920,7 +927,8 @@ mod tests {
         { "from": 7.0, "to": 19.0 },
         { "from": 19.0, "to": 20.0 },
         { "from": 20.0 }
-      ]
+      ],
+      "keyed": false
     },
     "aggs": {
       "average_in_range": { "avg": { "field": "score" } },